THE FORMATION OF LOCALISED MAGNETIC STATES IN ITINERANT ANTIFERROMAGNETSReportar como inadecuado




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Abstract : The properties of dilute antiferromagnetic alloys are investigated in the light of Anderson-s model for localised magnetic states. The host metal is described by a two-band model for itinerant antiferromagnets Cr in particular due to Lomer. The one-electron Green-s functions for this model are obtained by the equation of motion method and a self-consistent Hartree-Fock factorisation scheme. Analytic expressions are derived for the magnitude of the localised magnetic moment, the spin polarisation near the impurity site and the initial change in Néel temperature with impurity concentration.





Autor: M. Zuckermann

Fuente: https://hal.archives-ouvertes.fr/



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